Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X70-10B
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X70-10B is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø40mm bore and 70mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ40 mm
- Full stroke70 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X70-10B
The AirTAC ACQJ40X70-10B is a double-acting JIS compact cylinder featuring an external extend stop. A threaded adjuster with lock nut lets you set the extend end position on the machine, yielding a usable forward range of 60-70mm from the 70mm full stroke. The retract stroke remains completely unaffected.
Because the piston area stays constant, output force equals a standard ACQ, delivering 628.3N push and 527.8N pull at 0.5MPa. This variant includes a male M14x1.5 rod end and NBR elastomer bumpers. It ships without a magnet, though the body retains sensor grooves for adding switches later.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X70-10B Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X70-10B |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø40 mm |
| Full stroke | 70 mm |
| Adjuster thread | M12×1.25 |
| Port size | PT1/8 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Rod thread | M8×1.25 (F) / M14×1.5 (B) |
Specifications follow the official AirTAC ACQJ datasheet. The adjustable stop shortens the EXTEND stroke only; the piston area — and therefore the force — is the same as a standard ACQ of this bore. Adjustable window options: 10/20/30/40/50/75/100 mm.
Theoretical Output Force (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
Force equals a standard ACQ of the same bore — the adjuster changes stroke length, not piston area. Actual usable force is lower due to friction; size with a safety margin.
Model Code: Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X70-10B
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×70 | Full stroke length in mm. |
| -0 | Adjustable window in mm (extend stroke can be shortened by up to this). |
| S / B | Magnet (S) / male-thread rod (B); omit for none / female thread. |
Thread: PT standard (G / NPT available). Related: ACQ (fixed stroke), ACQD (double rod), TACQ (guided / non-rotating).
Where the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X70-10B Is Used
Machining Fixture Stops
Dial in the exact clamping reach on a CNC fixture by turning the external stop, accommodating different raw casting widths without swapping cylinders.
Packaging Changeover
Adjust the extend position rapidly during product format changes on a cartoning line, using the 60-70mm range to set new sealing depths.
Assembly Press Positioning
Establish trial end positions for pressing bearings on an automated line, fine-tuning the 10mm window to prevent over-travel on delicate parts.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X70-10B the Right Cylinder?
Select this 40mm bore if your setup needs 628.3N push at 0.5MPa but requires tweaking the forward stop within a 10mm window. Stepping down to a 32mm bore drops push to 402.1N, while a 50mm bore raises it to 981.8N. If exact end-position tuning is unnecessary, a fixed-stroke ACQ works fine. When ordering, verify the 70mm full stroke, 10mm adjust window, male M14x1.5 rod thread, and confirm no magnet is needed.
Quick checklist
- ✓ Need on-machine end-position tuning?
- ✓ Full stroke and adjust window (mm)
- ✓ Force at your working pressure
- ✓ Magnet (S) for sensors?
- ✓ Female (blank) or male (B) rod thread
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Lock the adjuster nut after setting the stop.
- check The stop limits the EXTEND stroke only.
- check Avoid side load on the short piston rod.
- check Installation by qualified personnel per AirTAC docs.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X70-10B FAQ
It provides 628.3N push and 527.8N pull at 0.5MPa, 879.6N push at 0.7MPa, and a maximum push of 128kgf at 1.0MPa. The usable extend range is 60-70mm, created by a 10mm adjustment window on the 70mm full stroke.
An M12x1.25 threaded stop with a lock nut mechanically limits the forward stroke, so force is identical to a standard ACQ. Fixed NBR bumpers decelerate the rod near ends, but the cylinder will drift on air loss; use an external rod lock for fail-safe holding.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC ACQJ Compact Cylinders
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